Siemens 3VA5217-5ED31-0AA0 0A 3-Pole 3 V Circuit Breaker

Meet the Siemens 3VA5217-5ED31-0AA0, a compact three-pole circuit breaker purpose-built for precise protection in low-voltage control panels and automation cabinets. This exact part number is designed to drop into Siemens installations with full compatibility, ensuring consistent protection behavior across your system.

• Part number: 3VA5217-5ED31-0AA0
• Current rating: 0 A
• Voltage rating: 3 V
• Poles: 3
• Configuration: 3-pole circuit protection for simultaneous disconnection of all three conductors
• Series/compatibility: Part of the Siemens 3VA protection family; designed to harmonize with existing Siemens gear

Why this 3-pole, 3 V design matters

In control and automation setups, multi-pole protection is essential to prevent uneven fault conditions and arc energy in three-phase circuits. The 3-pole configuration ensures all phases trip together, preserving equipment safety and simplifying fault isolation. The 3 V rating is suitable for ultra-low-voltage control circuits where protection must be fast and precise.

Practical use cases

Ideal for spare-part inventory in maintenance depots, OEM builds, and retrofits where Siemens 3VA components are already in use. Use cases include:

• Replacement in Siemens-powered control panels for robotics and packaging lines
• Protection in low-voltage DC control circuits within automated machinery
• OEM integrations requiring exact Siemens part numbers for documentation and warranties

Installation and maintenance tips

To ensure reliable performance, confirm the unit matches your system’s voltage and mount within compatible enclosures. Always refer to your equipment schematics to align the part number with the existing protection scheme, and replace with an identical Siemens model to maintain documented trip characteristics.